2882739
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 2882739, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is significant in the realm of truck maintenance due to its robust design and reliable performance. Cummins, known for its commitment to quality and innovation, produces this screw to meet the demanding requirements of commercial truck applications.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange beneath the head. The hexagonal head allows for efficient torque application using standard tools, while the flange provides a larger bearing surface that helps distribute the load more evenly. This design is integral to mechanical systems where secure fastening is required, particularly in environments subject to vibration and stress ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various applications within the truck’s structure and components, such as securing engine components, attaching body panels, and fastening chassis parts. Its design ensures that critical components remain securely in place, contributing to the overall stability and safety of the vehicle.

Key Features

The 2882739 boasts several key features that enhance its effectiveness and durability. Its hexagonal head design allows for straightforward installation and removal using common tools. The flange beneath the head provides additional surface area, which helps in distributing the clamping force more evenly across the fastened materials. Additionally, the screw is crafted from high-quality materials that offer excellent resistance to corrosion and wear, ensuring long-lasting performance in harsh operating conditions.

Benefits

Using the 2882739 in truck maintenance offers several benefits. The screw’s design contributes to improved fastening security, making it less likely to loosen over time, even in vibrating environments. Its resistance to corrosion ensures longevity, reducing the need for frequent replacements. Furthermore, the ease of installation and removal simplifies maintenance procedures, saving time and labor costs.

Installation Considerations

Proper installation of the 2882739 is vital to ensure its effectiveness and longevity. It is recommended to follow torque specifications provided by the manufacturer to achieve the correct clamping force without over-tightening, which could damage the screw or the fastened materials. Using the appropriate tools, such as a torque wrench, ensures precise application of the required torque. Additionally, ensuring that the surfaces to be fastened are clean and free of debris will contribute to a secure and lasting connection.

Troubleshooting and Maintenance

Common issues with the 2882739 may include loosening due to vibration or corrosion over time. Regular inspections can help identify such problems early. If loosening is detected, re-tightening to the specified torque is recommended. In cases of corrosion, cleaning the affected areas and applying a suitable anti-corrosive treatment can help prevent further degradation. Maintaining proper torque and ensuring the screw is compatible with the application will contribute to its longevity and performance.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a trusted provider of high-quality components for the commercial truck industry. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to meet the rigorous demands of commercial applications. Cummins’ commitment to quality, innovation, and customer satisfaction underscores its reputation in the industry.

Hexagon Flange Head Cap Screw 2882739 in Cummins Engines

The Hexagon Flange Head Cap Screw part number 2882739, manufactured by Cummins, is a critical component in several of their engine models. This part is designed to secure various engine parts, ensuring structural integrity and operational efficiency. Here is how it fits within the specified Cummins engines:

B5.6 CM2670 B152B and B6.7 CM2670 B153B

In the B5.6 CM2670 B152B and B6.7 CM2670 B153B engines, the 2882739 screw is used in several applications, including securing the cylinder head to the engine block. This ensures that the cylinder head remains tightly fastened, preventing leaks and maintaining the engine’s compression.

ISB5.9 CM2880 B149

For the ISB5.9 CM2880 B149 engine, the 2882739 screw is utilized in fastening various engine components, including the valve cover and other critical parts. Its design allows for easy installation and removal, which is crucial during maintenance procedures.

ISX Series

In the ISX engines, which include the ISX CM570, ISX CM870, ISX CM871, ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101, the 2882739 screw is used to secure several components. These engines benefit from the screw’s ability to withstand high torque and stress, ensuring that parts such as the turbocharger and other critical components remain securely fastened.

QSX15 Series

Similar to the ISX series, the QSX15 engines, including the QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105, use the 2882739 screw for securing various engine parts. This includes the fastening of the turbocharger and other critical components, ensuring the engine operates efficiently and reliably.

X15 Series

The X15 engines, which include the X15 CM2350 X116B, X15 CM2350 X123B, and X15 CM2450 X134B, also utilize the 2882739 screw. This screw is essential in securing the turbocharger and other components, ensuring that the engine maintains its structural integrity and operational efficiency.

Each of these engines relies on the 2882739 screw for its robust design and ability to withstand the high stresses and torques encountered during operation. Cummins’ engineering ensures that this screw fits seamlessly into the design of these engines, providing a reliable and durable solution for securing various engine components.

Hexagon Flange Head Cap Screw (Part 2882739) Usage in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 2882739, is a versatile fastener utilized in various engine components to ensure secure and reliable connections. Its application spans across multiple critical areas within the engine system, contributing to the overall functionality and performance.

Camshaft and Camshaft Gear

In the camshaft assembly, the Hexagon Flange Head Cap Screw is employed to fasten the camshaft to the cylinder block. This secure attachment is vital for maintaining the precise alignment and operation of the camshaft, which controls the opening and closing of the engine’s valves. Additionally, it is used to attach the camshaft gear, ensuring the camshaft rotates in sync with the crankshaft, thereby maintaining the engine’s timing.

Camshaft Gear Set

Within the camshaft gear set, this screw plays a role in securing the individual gears together. This ensures that the camshaft and crankshaft maintain their relative positions, which is essential for the engine’s valve timing and overall performance.

Cylinder Block

The cylinder block, the engine’s structural core, utilizes the Hexagon Flange Head Cap Screw to attach various components, including the camshaft and pressure regulator valve. This secure fastening is necessary to withstand the high pressures and temperatures within the engine.

Exhaust Gas Recirculation Module Support

In the Exhaust Gas Recirculation (EGR) system, the screw is used to secure the EGR module support to the engine block. This support is crucial for the proper functioning of the EGR system, which recirculates a portion of the exhaust gas back into the intake manifold to reduce nitrogen oxides (NOx) emissions.

Exhaust Recirculation

For the exhaust recirculation components, the screw ensures that the connections between the EGR valve and the intake manifold are secure. This is important for maintaining the efficiency of the EGR system and ensuring that the recirculated exhaust gases are properly mixed with the intake air.

Idler Gear

In the timing chain or belt system, the Hexagon Flange Head Cap Screw is used to attach the idler gear to the engine block. The idler gear helps maintain tension in the timing chain or belt, ensuring smooth and consistent operation of the camshaft and crankshaft.

Pressure Regulator Valve

The pressure regulator valve, which controls the fuel pressure within the engine, is secured using this screw. Proper attachment ensures that the valve functions correctly, maintaining the optimal fuel pressure for efficient engine operation.

Turbocharger Arrangement

In turbocharged engines, the screw is used in the turbocharger arrangement to secure various components, such as the turbocharger housing to the engine block. This ensures that the turbocharger operates efficiently, providing the necessary boost to enhance engine performance.

Conclusion

The 2882739 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its robust design, ease of installation, and resistance to corrosion make it an ideal choice for securing various engine components. Proper installation and maintenance of this screw are essential to ensure the longevity and performance of the engine systems it supports.

References